TY - BOOK AU - Abelson Peter TI - Project appraisal and valuation of the environment: general principles and six case-studies in developing countries SN - 0-312-12984-X U1 - 333.7091724 PY - 1996/// CY - New York PB - St.Martin's Press KW - Cost effectiveness KW - Developing countries KW - Economic development proects KW - Economic development projects-environmental aspects ER -